dispfft

displayfft —
Displays the Fourier Transform of an audio or control signal.

Description

These units will print orchestra init-values, or produce graphic display of orchestra control signals and audio signals. Uses X11 windows if enabled, else (or if -g flag is set) displays are approximated in ASCII characters.

Syntax

dispfft xsig, iprd, iwsiz [, iwtyp] [, idbout] [, iwtflg]

Initialization

iprd -- the period of display in seconds.

iwsiz -- size of the input window in samples. A window of iwsiz points will produce a Fourier transform of iwsiz/2 points, spread linearly in frequency from 0 to sr/2. iwsiz must be a power of 2, with a minimum of 16 and a maximum of 4096. The windows are permitted to overlap.